{"id":2983,"date":"2012-09-06T16:35:49","date_gmt":"2012-09-06T16:35:49","guid":{"rendered":"http:\/\/www.theperfectarts.com\/?p=2983"},"modified":"2013-01-14T17:45:13","modified_gmt":"2013-01-14T17:45:13","slug":"inode-related-questions","status":"publish","type":"post","link":"https:\/\/www.ktchost.com\/blog\/inode-related-questions\/","title":{"rendered":"inode related question"},"content":{"rendered":"

Now we have started the Linux Sytem Admin questions on daily basis, so that you can check the questions with the answer daily at least one topic. Today’s topic is inode. The following questions are mostly asked \u00a0by any\u00a0institution\u00a0or company.<\/p>\n

1st) What is inode?<\/strong><\/p>\n

Ans ) Al the files and directory having its own description stored in a structure its called as ‘inode’ and every file\/directory having differeny inode number. The following fields are content in the inode.<\/p>\n

owner identifier <\/strong>
\nThe file type<\/strong>
\nThe file access permissions<\/strong>
\nTh file access times<\/strong>
\nThe number of links <\/strong>
\nThe most important the file size<\/strong>
\nThe location of the file data<\/strong><\/p><\/blockquote>\n

2nd) How to check the inode number for file or directory?<\/strong><\/p>\n

Ans) Refer the following command<\/p>\n

For example for file<\/p>\n

root@linux [\/home]# ll -li test.php<\/strong>
\n3473411 -rw-r–r– 1 root root 65 Jul 3 15:06 test.php<\/strong><\/p><\/blockquote>\n

The inode number for test.php file is 3473411<\/strong><\/p>\n

For example for directory<\/p>\n

root@linux[~]# ll -id \/root<\/strong>
\n224001 drwxr-x— 16 root root 4096 Sep 6 04:58 \/root\/<\/strong><\/p><\/blockquote>\n

The inode number for root directory is\u00a0224001\u00a0<\/strong><\/p>\n

3rd) How to check the server partitions inode numbers\/<\/strong><\/p>\n

Ans) We can check the server partitions inode number by using the following command “df -i”<\/p>\n

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\nFilesystem \u00a0 \u00a0 \u00a0 Inodes \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 IUsed \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 IFree \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0IUse% \u00a0 \u00a0Mounted on
\n\/dev\/sda1 \u00a0 \u00a0 \u00a0 1280000 \u00a0 \u00a0 \u00a010131 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1269869 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a01 2% \u00a0 \u00a0 \u00a0 \u00a0 \/home
\n\/dev\/sda3 \u00a0 \u00a0 \u00a06403712 \u00a0 \u00a0 \u00a0 111265 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 6292447 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 2% \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/usr
\n\/dev\/sda2 \u00a0 \u00a0 \u00a06403712 \u00a0 \u00a0 \u00a0 27690 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 6376022 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1% \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/var
\n\/dev\/sda6 \u00a0 \u00a0 \u00a0512512 \u00a0 \u00a0 \u00a0 \u00a0 \u00a04333 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 508179 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a01% \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/tmp<\/p>\n

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/p>\n

4th) Can two files have the same inode number?<\/strong><\/p>\n

Ans) If files are present on two different partitions than only files can have same inode number else on same partiton two files with the same inode number is not possible.
\n5th) How to check how many inode are free on the server?<\/strong>
\nAns:) We can use the following command to check the free and used inodes on the server.<\/p>\n

df -i<\/strong><\/p><\/blockquote>\n

We will update more question in future for inodes issue<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Now we have started the Linux Sytem Admin questions on daily basis, so that you can check the questions with the answer daily at least […]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-2983","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/posts\/2983"}],"collection":[{"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/comments?post=2983"}],"version-history":[{"count":3,"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/posts\/2983\/revisions"}],"predecessor-version":[{"id":3389,"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/posts\/2983\/revisions\/3389"}],"wp:attachment":[{"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/media?parent=2983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/categories?post=2983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ktchost.com\/blog\/wp-json\/wp\/v2\/tags?post=2983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}